baber/WOPTO huggingface dataset:
Patent GB-612252-A (GB)
Title: An improved manufacture of stabilized synthetic rubber latices
IPC: C08F36/04
Filed: 1946-05-21
Abstract: Synthetic rubber latices are stabilised by dispersing therein not more than 7 per cent of a mixture of hydroxylamine or an acid addition salt thereof and a dialkylated o- or p-cresol (see Group V). Preferably the ratio of dialkylated cresol to hydroxylamine is from 1 : 1 to 2 : 1.  Suitable latices are prepared by emulsion polymerization of conjugated diolefines, e.g. butadiene-1.3, isoprene, piperylene, dimethyl butadiene, methyl pentadiene singly or in combination or in admixture with styrene, substituted styrenes, acrylic and methacrylic esters and nitriles, fumaric esters, methyl vinyl ketone and methyl isopropenyl ketone.  Also suitable are latices prepared by emulsion polymerization of styrene, methyl methacrylate or methyl isopropenyl ketone alone. The stabilizers are added in water or benzene solutions or dispersions.  Specified are hydroxylamine and its hydrochloride in admixture with di-tert.-butyl cresols, di-tert.-amyl cresol, 2.4.6-trimethyl phenol, 2.3 - dimethyl - 6 - tert. - butyl phenol and 2.6-diethyl-4-methyl phenol.  The addition may be made before, during or after creaming the latices, but is preferably made during polymerization when the desired proportion of monomers has been polymerised, in order to stop the reaction.ALSO:Synthetic rubber latices are stabilized by dispersing in them not more than 7 per cent of a mixture of hydroxylamine or an acid addition salt thereof and a dialkylated o- or p-cresol (see Group V).  The preparation of di-tertiarybutyl cresol by bubbling isobutylene through acidified p-cresol is described.  Other phenols and iso-olefines, e.g. iso-amylene, may be used.ALSO:Synthetic rubber latices are stabilized by dispersing in them not more than 7 per cent of a mixture of hydroxyglamine or an acid addition salt thereof and a dialkylated o- or pcresol. Preferably the ratio of dialkylated cresol to hydroxyglamine is from 1 : 1 to 2 : 1.  Suitable latices are prepared by emulsion polymerization of conjugated diolefines (see Group IV (a)) e.g. butadiene 1.3, isoprene, piperylene, dimethyl butadiene, methyl pentadiene, singly or in combination or in admixture with copolymerizable compounds, e.g. styrene, substituted styrenes, acrylic and methocrylic esters and nitules, fumaric esters, methyl vinyl ketone and methyl isopropenyl ketone.  Also suitable are latices prepared by emulsion polymerization of styrene, methyl methacrylate or methyl isopropenyl ketone alone.  The stabilisers are added in water or benzene solutions or dispersions. Specified are hydroxyglamine and its hydrochloride in admixture with ditert. butyl cresols, ditert. amylcresol, 2.4.6-trimethyl phenol, 2.3-dimethyl-6-tert butyl phenol and 2.6-diethyl-4-methyl phenol. The addition may be made before, during or after creaming the latices, but is preferably made during polymerization when the desired proportion of monomers has been polymerized in order to stop the reaction.
Patent GB-191673-A (GB)
Title: Improvements in automatic stapling, label tacking machines and the like
IPC: B25C5/16
Filed: 1922-06-01
Abstract: 191,673. Allen, A. June 1, 1922. Stapling.-In automatic stapling and label tacking machines wherein strip staples are fed to a cutter and driver, the feeding mechanism is formed as a detachable unit so that it can be replaced when worn or damaged by an unskilled person. Detail improvements in the feed mechanism and other parts are described and the device has a hinged base. The feed mechanism, consisting of a spring-actuated bifurcated member 29. Fig. 3, engaging the staple strip 19, is carried by a handle 28<a> sliding on a rod 24 and also in a groove in a cover plate 20 and pressed forwards by a spring 27. The plate 20 engages at the front end with a groove in the main frame 11 and is detachably secured, carrying with it the entire feed, by a screw 23 at the back. The staples are pressed downwards by a spring 31 on the plate 20 and are prevented from being forced backward into the feed magazine while being severed by a plunger 35 by projections 41 on each side of the cutting bar 18. The stapling strip is further engaged by a detent 34, Fig. 8, to prevent back lash and the feed fingers 29 are guided in two grooves 37 in the top surface of the cutting bar. The base 13, Fig. 3, of the machine is hinged as usual and can be retained horizontally in a backward position by a spring-pressed ball 38 engaging the back shoulder of the machine. A circular disc 16 of tool steel is inserted in the base upon which to clinch the staples.
Patent GB-204091-A (GB)
Title: Improvements in electric motor controllers
IPC: H01H19/24
Filed: 1923-03-02
Abstract: 204,091. Browne, C. L., and Heywood & Co., Ltd., S. H. March 2, 1923. Switches, quick-action.-In order to impart a quick step-by-step movement to a motor controller shaft b from a manually turned shaft a, a pair of arms d pivoted to a plate b<1> rigidly fixed to the shaft a have inclined parts which react with rollers t mounted on a notched disc q rigidly attached to the shaft b. The free ends of the arms are connected through a spring e which is compressed as the shaft a is turned and the reaction of the spring through the inclined backs of the arms upon the rollers t eventually forces a spring-mounted checking roller p from one of a set of notches in the disc q and imparts quick movement to the controller shaft. Specification 203,381, [Class 38 (iii), Electric motor control systems &c.], is referred to.
Patent GB-1431762-A (GB)
Title: Method and apparatus
IPC: G01N22/00
Filed: 1972-04-05
Abstract: 1431762 Electro-physical measurement; automatic control systems RG BOSISIO 4 April 1973 [5 April 1972] 15597/72 Heading G3R [Also in Division G1] The properties of a sample are measured by subjecting it to the R.F. radiation field from a transmission line forming the "tank circuit" of an oscillator whereby the oscillator frequency is influenced by the sample. The field may extend 3" from the probe. Many applications are suggested such as the dielectric profile of virgin sheets from a paper machine; moisture in margarine or pills; the configuration of plastic films or fast moving hot iron plates; grading and measuring the aspect ratio of eggs; borehole logging. As shown Fig. 1 a sample 2 is located adjacent the radiating sensor element 1 which is connected in a loop with amplifier 3, directional coupler 4 and phase adjuster 5 (to ensure oscillation). The resultant frequency signal is radio link 11, or line 9 to counter 13 feeding a printer 15, and computer 16 to operate a process controller 17. For controlling moisture in a moving web of material Fig. 6, two sensor channels are spaced in the direction of movement, the second channel checking the correction made by the first and making a further correction if necessary. As shown the sensors are traversed across the web but alternatively a plurality of sequentially switched sensors may be used Fig. 7 (not shown), or the web may pass between a pair of sensors traversed in synchronism Fig. 8 (not shown). Sensor construction. The radiator/sensor element may be a co-axial transmission line slotted to provide a leakage field, or a slow-wave structure e.g. helix or inter-digital line, or it may be provided with external radiator plates e.g. for egg-grading Fig. 10, (not shown).
Patent GB-1072032-A (GB)
Title: Method and apparatus for forming parisons of plastics materials
Inventor: VALYI EMERY IMRE
IPC: B29C49/06
Filed: 1964-09-10
Abstract: 1,072,032. Injection-blow moulding. E. I. VALYI. Sept. 10, 1964 [Sept. 10, 1963; Nov. 27, 1963; March 18, 1964], No. 15705/66. Divided out of 1,072,031. Heading B5A. The subject-matter of this application is contained in the parent Specification but the claims are directed to the method by which a parison is formed.
Patent GB-868659-A (GB)
Title: Apparatus for closing toothpaste-type tubes of plastic material
IPC: B29C65/00
Filed: 1959-05-07
Abstract: 868,659. Packaging-machines. INDUSTRIEWERKE KARLSRUHE A.G. May 7, 1959 [Aug. 19, 1958], No. 15707/59. Class 94(1). A device for closing by welding the open bottom ends of filled collapsible tubes comprises pairs of presser jaws mounted above the welding jaws and capable of pressing the tube in sequence to progressively flatten it towards the area to be welded. The jaws 8-10 are mounted on carriers 7, 28 slideable towards each other on a shaft 5. Each jaw is spring loaded by a pair of compression springs surrounding pins 16-18 carried by the jaws, the springs being accommodated in bores in the carriers. The welding jaws 11 are fixed to the carriers.
Patent GB-313300-A (GB)
Title: An improved metal foil
IPC: B21C37/02
Filed: 1928-05-29
Abstract: 313,300. Marks, E. C. R., (American Machine & Foundry Co.). May 29, 1928. Metal foil.-An alloy comprises lead and practically all the magnesium the lead will absorb, i.e. about 0.5 per cent by weight, and is made by introducing the magnesium into the molten lead by immersion. The alloy is stated to be particularly adapted for making metal foil, for use with or without a paper backing, as the alloy can be rolled to a thickness of less than 0.0005 inch.
Patent GB-534141-A (GB)
Title: Improved process for coating articles with tin or other fusible substance
IPC: C23C24/10
Filed: 1939-05-30
Abstract: 534,141. Coating articles with metals. TALBOYS MANUFACTURING CO., Ltd., and LAWRENCE, E. G. May 30, 1939, No. 15816. [Class 82 (ii) ] Metal articles such as petrol tanks are coated internally with tin or like fusible metal such as tinmans solder by putting the coating metal in the form of small particles having a large surface area in proportion to their volume, e.g. thin short ribbons, and moving the articles, e.g. by rotation to bring the metal into contact with the surfaces to be coated while the article is heated. In the tinning of petrol tanks, the tanks 8 are carried by mountings 7 which are pivoted at 9 to the cranked ends 6 of shafts 2 which can be connected by clutches 3 to the drive 4 from a motor 5. The tanks are heated by portable gas heaters. not shown. To carry out the process, the tank is heated to 500‹C. fastened to the machine, a quart of hydrochloric acid poured in, and revolved for 5 minutes. The acid is drained out, a gallon of water run in, the tank revolved for 3 minutes and the water removed. 2¢ fluid ozs. of soldering spirits are now put on each side of the bridge 14 of the tank, the latter rotated for 3 minutes and then 3 ozs. of metal particles are inserted on each side of the bridge 14 and the tank rotated again for 3 minutes, the gas heaters turned on and further rotation continued for 3 or 4 minutes. The gas is then turned off, the rotation continued for 3 or 4 minutes. A gallon of hot water to which is added ¢ fluid oz. of hydrochloric acid is now poured in the tank which is then rotated for 3 minutes the water drained out and a further gallon of hot water added. The tank is now rotated for two minutes, the water drained out and the tank heated to dry it. For the lining of oil boxes 20, the latter are mounted on turntables 19 mounted on the cranked part 18 of the driving shaft 16. Teeth 21 in the periphery of the tables 19 are engaged by pawls 22 mounted in the sliding shaft 23 which is given an oscillation by the engagement of its end with fixed cams 24. The tables 19 are advanced a little each time the part 18 rotates and the axis about which the boxes 20 rotate is continually varied.
Patent GB-228065-A (GB)
Title: Improved construction of driving gear for hoists
IPC: B66D1/16
Filed: 1924-07-02
Abstract: 228,065. Coldman, J. W. July 2, 1924. TVinches; driving-gear; regulating and controltransmitting gear. - Comprises screw-and-nut mechanism for releasing the clutch when the weighted brake, arm is raised, in a hoist of the type in which the drum, gear wheel and brake drum form a loosely-mounted unit gearing with a countershaft carrying a sliding clutch which is interlocked with the sliding arm for applying tho hand brake. In the construction shown in Fig. 3, the motor 14 drives the countershaft 8 though spur gearing. A clutch pinion 9 on the countershaft gears with a wheel 4 directly or, as shown, through a second countershaft. The wheel 4, winding drum 3 and the brake drum form a unit. Raising the weighted lever 17 to its full extent to relieve the hand brake also moves a threaded shaft 18 axially to put in the clutch for hoisting, but the brake can be relieved sufficiently to permit lowering without the engagement of the clutch.
Patent GB-1502604-A (GB)
Title: Sizing of textile materials
IPC: D06B23/06
Filed: 1975-04-10
Abstract: 1502604 Solvent sizing warp yarns PLATT SACO LOWELL Ltd 10 April 1975 [10 April 1974] 15943/74 Headings D1L and DIP Warp yarns are solvent sized by passage beneath roller 132 partially immersed in a non-aq. size solution bath 131 housed in sizing chamber 13 and then through evaporation chamber 14 wherein the yarn sheet is separated by passage over transverse rods 146 and passed in counter-current to a stream of hot air supplied from outlet 164 by a fan 162, the solvent-laden atmosphere being withdrawn from chamber 14 and the solvent recovered therefrom by passage through condenser 166. The yarn sheets are recombined at the exit of chamber 14 and passed through a drying cabinet 15 containing a pair of heating cylinders 151. Excess solvent is removed from the yarn sheets as they pass through aperture 122 in the partition 139 separating the two chambers. The inlet and outlet to the chambers have roller seals 134 and 17 respectively. The solvents may be tri- or perchlorethylene.
Patent GB-1212508-A (GB)
Title: Decorative covering for a wall or similar surface
Inventor: REDSHAW BRYAN
IPC: B32B27/00
Filed: 1967-04-07
Abstract: 1,212,508. Decorative coverings for walls and similar surfaces. GIBSON & LUMGAIR (SCOTLAND) Ltd. 5 March, 1968 [7 April, 1967], No. 15973/67. Heading B5N. A two-layer laminate for covering a wall or similar surface comprises an open textile fabric laminated to a transparent or translucent flexible carrier sheet so that a wall or similar surface against which the covering is placed or fixed can be viewed through the covering. The open textile fabric is one in which the apertures defined between adjacent yarns are so large that the colour of the surface upon which the textile fabric is placed can be observed, and may be a knitted fabric or woven fabric having 1-20 picks per inch in the warp and weft. The carrier sheet may be wettable by water so that the covering can be fixed to a wall or similar surface with transparent water-based adhesive. The carrier sheet may be of plastics, e.g. transparent polyvinyl chloride. Adhesive may be applied only to a marginal 2-3 inches of each sheet so that the covering can be removed, the wall repainted and the covering reattached. Instead of gluing to the surface, the covering may be applied to a wall by stretching it over a framework. A framework of ribbon material may be applied to each sheet to provide a decorative panel.
Patent GB-734983-A (GB)
Title: Improvements in dental amalgam carriers
Inventor: LEACH WILLIAM FRANCIS
IPC: A61C5/62
Filed: 1953-06-10
Abstract: 734,983. Dental instruments. WHITE CO. OF GREAT BRITAIN, Ltd., S. S. June 10, 1954 [June 10, 1953], No. 15980/53. Class 81 (2). A dental amalgam holder has an adjustable stop for the plunger so as to determine the effective capacity of the applicator nozzle. The nozzle b, at one end of the handle member a, accommodates the piston d and this is connected through a flexible rod e to the plunger rod f. The latter rod fits freely into a cylindrical hole in a rod and a stop h is normally held against the end of this rod by a spring g. The outward movement of the rod j is limited by a stop m engaging the ferrule k which is threaded for longitudinal adjustment in the body a and is provided with a lock nut l. The retraction movement of the plunger is thus adjustably limited and the effective capacity of the nozzle b can be determined to suit the requirements of the user.
Patent GB-687508-A (GB)
Title: Improvements in or relating to machines for polishing cycle wheel rims and the like
Inventor: WHALE GEORGE HENRY
IPC: B24B5/44
Filed: 1950-06-27
Abstract: 687,508. Polishing wheel rims and the like. DUNLOP RUBBER CO., Ltd. June 20, 1951 [June 27, 1950], No. 15986/50. Class 60. [Also in Group XXVIII] A machine for polishing wheel rims and the like comprises a rotatable polishing mop 5, a rotatable rim-positioning roller 60 mounted on a member 30 pivoted about an axis parallel to that of the mop, a pair of rotatable, relatively displaceable rollers 8, 55 adapted to grip and drive the rim, and means for successively effecting relative movement of the pair of rollers to grip the rim and pivotal movement of the member 30 to press the rim against the mop and for effecting these movements in reversed sequence. The mop 5 is directly driven by an electric motor, and the roller 8, which is coaxial with the pivot of the member 30, is driven by a separate motor 15 through a gear train. Both rollers 60 and 55 are mounted for free rotation on the member 30. The wheel rim 68 is supported on brackets 62 while the roller 8 is rotatably mounted on a casting 7 which also supports the member 30. The position of this casting relative to the frame of the machine may be adjusted by a screw 24. After a wheel rim has been placed on the brackets 62, a pedal 63 is depressed to allow fluid to flow from a single source to cylinders. 42, 49. The flow to these cylinders takes place through separate valves so that cylinder 49 receives fluid at a higher pressure than cylinder 43 with the result that the roller 55 is displaced to grip the rim before the roller 60 presses the rim into contact with the mop. When the pedal is again pressed to release the rim after a polishing operation the high and low-pressure supplies are reversed electrically to move the roller 60 first. The arm 30 is made adjustable in length by means of a slidable, slotted member 56 and securing bolts 57. In a machine for treating the external peripheries of two wheel rims simultaneously the rims are arranged to contact diametrically opposite points of a single mop and the rollers 8 and 60 are arranged to bear on the interior of the rim. The mop may be connected to a hydraulic cylinder which reciprocates it axially during polishing to distribute wear over the width of its periphery. Grease nipples 61 are provided.
Patent GB-1237705-A (GB)
Title: An electroluminescent device for modulating the contrast of an optical image
IPC: G03B27/16
Filed: 1968-04-17
Abstract: 1,237,705. Controlling contrast. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. April 17, 1968 [April 24, 1967], No.16044/68. Heading G2C. The contrast of an optical image carried on a transparency or film 101 is modulated by means of an arrangement comprising an energy-sensitive layer and an electroluminescent layer. As shown, the unit 102 comprises a first electrode 103, a layer 104 of a dielectric material, a layer 105 of an infared-sensitive material (e.g. CdSe), and a grid-like second electrode 106 which is embedded in the layer 105. Then there is a further layer 107 of an electroluminescent material such as zinc sulphide which luminesces green, and a third electrode 108 which is transparent. On this is laid the film 101. Light from an infrared lamp 109 is passed through a filter 110 which cuts off the visible portion of the spectrum, and is then reflected from a semi-transparent mirror 115 on to the unit 102. The infrared light incident on unit 102 passes through the film 101, electrode 108 and the transparent layer 107 to the infraredsensitive layer 105. The light received by layer 105 has an intensity distribution corresponding to the relative transmissivity of the image on film 101. Thus the electroluminescent layer 107 is energized to emit visible green light having the same intensity distribution. This passes again through the film 101 and through mirror 115, and an image is formed by a lens 112 on a sensitive sheet 113 to obtain a print. An A.C. voltage V 1  is applied between electrodes 106 and 108, and a voltage V 2  between electrodes 103 and 108. By regulating these two voltages, the electroluminescent layer can be made to produce a positive or negative visible image, and the contrast can be varied over a wide range.
Patent GB-839394-A (GB)
Title: Improvements in a tubeless pneumatic tyre or other laminated article comprising a natural rubber layer bonded to a synthetic rubber layer
IPC: B60C1/00
Filed: 1957-05-21
Abstract: <PICT:0839394/IV (a)/1> In a composite rubber article, e.g. a tubeless pneumatic tyre, comprising laminated vulcanized rubber material, a layer 8 comprises vulcanized natural rubber and is vulcanized to a second layer, e.g. a liner member 7, comprising a chlorinated copolymer of a major portion of an iso-olefin having 4 to 8 carbon atoms and a minor portion of a diolefin having 4 to 7 carbon atoms, and at least one of the layers 7, 8, preferably the layer 8, contains silica.  The liner 7 is adhered by the layer 8 to a fabric reinforced portion 2 which terminates in beads 3, 4.  The layer 8 may contain 20 to 60 parts by weight of silica per 100 parts of natural rubber, and may be applied to the portion 2 either as a calendered sheet or as an adhesive solution prepared by dissolving 100 parts natural rubber, 33 parts hydrated silica, 25 parts carbon black, and vulcanizing and other compounding ingredients in gasolene, toluene, xylene, or other rubber solvent.  Measurement tests are described of the adhesion between a calendered sheet of the natural rubber composition of layer 8, and a composition comprising 20 parts natural rubber, 80 parts chlorinated copolymer, 40 parts carbon black, and vulcanizing and other compounding ingredients.  The chlorinated copolymer may be prepared by co-polymerizing 70 to 99 parts by weight of isobutylene and 30 to 1 parts butadiene or isoprene, and chlorinating the resulting copolymer by mixing with a chlorinating agent such as dichlorodimethyl hydantoin on a two roll mill.
Patent GB-828868-A (GB)
Title: Improvements in or relating to the processing of fruit grown in shells
Inventor: COHEN MAURICE
IPC: A23L25/00
Filed: 1957-05-21
Abstract: Kernels of fruits which are surrounded by a porous shell, e.g peanuts, are treated with a fluid flavouring material without breaking the shell, preferably by creating a higher pressure outside the shell than inside.  The pressure differential can be created by increasing the outside pressure or making a partial vacuum inside the shed.